Gas burner



' Sept. 4, 1923. 1,466,763

J. w. SHARP GAS BURNER Filed Sept. 13. 1921 2 Sheets-Sheet 1 44 R1 3 1 j ids .l usephw. Sharp Sept, 4, 1923. 1,466.763

J. w. SHARP GAS BURNER Filed Sept. 15 1921 2 Sheets-Sheet 2 v g-numfloz .lusephw. Sharp ment of the hood and burner in relation to Patented Sept. 4,1923.

PATENT OFFICE;

JOSEPH w. sienna, or EHILADELPHIA, rnunsvrvnnrn.

. GAS: Brianne.

Application filed September 13, 1921. Serial No.-500,322.

T 0 all whom it may concern:

Be it known that I, JOSEPH W. SHARP, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and Statev of Pennsylvania, have invented certain new and useful Improvements in Ga Burners, of which the following is a specification.

This invention relates to gas burner attachments for coal burning stoves and furnaces and is an improvementon my pending application filed April. 11, 1921,, and Se: rial No. 460221, and the primary ob ects of the present invention are first, to provide a novelly constructed heat distributing hood or muffler; second, to provide a novelsupport for the heat distributing hood or muffier and burner which will permit adjusteach other and to the stove or furnace with which it is associated; third, a novel burner and means for arranging the burner in the hood or muflier; and, fourth, a novel burner cap for the burner.

With these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more specifically described, claimed and illustratedinthe accompanying drawings, forming a part, of this specification, in which drawing:

Figure l is a perspective View of a coal burning cooking stove partly in section, showing the improved gas burner attachment associated therewith. V

Figure 2 is a sectional viewthroughthe stove illustrating the means: of associating the novel burner attachment therewith,

parts of the burner attachment being shown in section. I I

Figure 3 1s a transverse section through the stove taken on the line 3 3 of -Fig-" ure 2. g Y V Figure 4: is an enlarged sectional view through one of the burner tubes and caps.

Figure 5is an enlarged bottom plan view ofione of the burner caps. t

V Figure 61is a-plan view of the top of one 5- 'ofthe burner tubes. I

.ormuffiers, which are adapted to be used wherein similar reference characters desigfbrick 17' in the fire box. this plate prevents the seeping of cold air Figure 7 is a plan viewon a small scale of a modified form of burnerhood or muffler.

with various styles and shapes of stoves and furnaces. V 1

Referring to the drawings in detail,

nate corresponding parts throughout the several views, the letter A indicates a coal burning cookstove; and B the novel burner attachment which is adapted to be associated therewith.

'VVhile in the drawings the attachment has been shown in connection with a cook stove, it is to be readily understood that the attachment is adapted to be used with any preferred type of coal burning stove or furnace, and that the attachment can be modified to accord with the construction thereof as shown in Figure 7 to 10 inclusive. a i

The stove A may be of the usual or any desired construction and includes the base 15, the fire boX 16 which can be provided with the usual fire brick lining l7 andthe ash pit 18. The top 19 of the stove is ar ranged in the usual manner and it is preferred, that the mufflers or heat distributing hoods be arranged below the burner openings thereof. This is of course notnecessary,-as the heat thrown out therefrom is Well distributed throughout the entire area of the fire box.

1 The ash pit 18 is provided with the usual bottom wall 20 and the front door opening 21 through which the ashes are usually removed. In order to arrange the improved burnerattachment B within the stove A, the usual grate and grate bars are removed therefrom as is clearly apparent by referring to Figures 1 to 3 inclusive.

The improved burner attachment B com- 7 This plate 25, as shown, is substantially rectangularshaped in plan and is adapted to snugly engage the lower surface of the fire box '16, and is disposed below the fire The provision of into the fire box from the ash pit.

This plate'25 sup-ports the heat distributing hoods or rnufiiers C and is supported by thenovel ber D. s p

The heat distributingburner hoods C are 1y. arranged supporting memalso formed of fire brick, clay or some other refractory material. As shown in Figures 1 to 3 inclusive, the same are constructed substantially rectangular shaped in plan and include the side walls 30, the end walls 31 and the top wall 32. The lower edges of the side and end walls 30 and 31 rest upon the plate 25. It can be seen that the lower end of the heat distributing hoods or mufiiers are left open. The side walls 30, the ends walls 31 and the top walls 32 are provided with relatively small perforations 33, through which the heat and flame is adapted to be projected.

There may be any number or the heat distributing hoods or inufilers as may be desired, and according to the size of the stove or fire box. As shown in Figures 1 to inclusive, there are'two of the heat distribu tors or mutilers arranged on the plate 25. In case the stove or turnace is ot a relatively arge size, the plate 25 can be readily made in sections, if so desired, in order to facilitate the handling and the placing thereof within the stove.

The novel support D for the plate 25 comprises end brackets These end brackets 35 are constructed identically the same, and each includes the U-shaped base portion 36, having the depending legs 37 formed thereon. These legs 37 are provided with outwardly extending feet 38, which receive the adjustable set screws 39. These set screws 39 ser *e as means for raising and lowering the U shaped portion 36 as is readily apparent. These set screws 39 engage the lower wall 20 of the ash pit. The side portions of the U-shaped base portion 36 slidably receive arms 40. These arm's 4:0 carry adjusting bolts 41 which are slidably mounted in slots 42 formed in the side portions of the U-shaped portions 36. This permits the arms 40 to be readily raised and lowered and held in any desired position in order to support the plate 25' at the desired height in the stove. The upper end of the arms 40, it so desired, may be provided with outwardly extending feet M, which may be connected by suitable strips 45. These strips 45 extend longitudinally ot the plate 25 and form means for supporting the same throughout its entire length. In some in stances where the plate is formed relatively small, the strips 45 may be dispensed with.

The si'ipporting stand D also supports the burners proper E which will now be described. as shown, there are two burners E, each including a tube 50 which is extended through a suitable opening 51 formed in the plate 25. Each of the burner tubes 50 is adapted to project into the heat distributing hoods or' mu'iil rs C and have their lower ends flared as at 52, so as to permlt the entrance of a1r into the same. The lower flared ends 52 of the burner tubes are lower flared ends 52 of the burner tubes 50- and can be threadabiy connected thereto it so desired. Suitable gas cocks 58 are disposed within the burner tubes and are provided with crank handles 59, which can be connected to a single operating rod- 60. As shown this operating rod 60 has its outer end extending through the ash pit door opening 21 and is provided with a handle 61. The gas supply pipe 56' rests in seats 62 formed in the bight portions of the U- shaped portion 3,6 of the brackets 35, and suitable cap members 63 are provided for holding the supply gas tube 56' in position. Each burner tube 50 is provided with a novel burner cap 65, which is preferably formed of clay or other refractory mate rial. Each of the caps 65 has embedded therein a copper or other metallic screen 66, which prevents the falling of foreign matter into the burner tube. In order to provide an e'tiicient means for detachably connecting each burner cap to each burner tube, the burner caps are provided with bayonet slots 67. which are adapted to receive outstanding lugs 68 formed on the upper end of the burner tubes.

From the foregoing, it can be seen that the stand or support D forms an ellicient means for not only supporting the plate 25 and the burner proper, but also forms an ei'iicient means for adjusting the position of the plate 25 and the burner caps 65 in the heat radiating hoods or mufilers C.

It can be seen that when it is desired to adjust the position of the plate 25, it is merely necessary to loosen the bolts il and then slide the arms a0 upwardly until the plate 25 reaches the desired height. The bolts et'l are then tightened. When it is desired to adjust the burner caps 65 within the heat radiating caps or mutilers C, it is merely necessary to turn the set screws During the adjusting of the set screws 39, the arms 40 can he slid downwardly.

It can be seen that the gas will be projected into the mufflers for heat radiating hoods C and the gas is lit from the exterior thereof. The gas is then burned within the hood and. will be projected outwardly through the openings 33. The refractory material from which the hoods are constructed will become red hot and efie'ctively distribute the heat throughout the entire top area of thestove'.

Thus it can be seen that an efficient means has been provided for effectively cooking or heating which will entirely eliminate the inconveniences associated with wood and coal stoves.

It may be found desirable to seal the edges of the plate 25 to the fire box, in order to render this connection air tightand thereby prevent seeping of cold air into the fire box.

If desirable, a pilot 75 may be provided in order to facilitate the lighting of the gas within the hood or mufflers C and as shown the pilot is provided with a T'-head 7 6 which is carried by an upwardly extending gas conducting tubev 77, which communicates at its lower end with the gas feed pipe 56. This pilot can be left burning at all times if found desirable. I

As heretobefore stated, the mufflers O may be of any desired shape and of any desired number according to the size or configuration of the stove or furnace with which they are associated, and in Figure 7 is shown a substantially circular muffler 80, which is adapted to be arranged centrally on a bed plate 81, of refractory material.

In Figure 8 is shown a series of mufflers 85, 86, and 87, which are formed in the segments of a circle, and these mufflers or heat radiating hoods are disposed upon a common plate of refractory material 88.

In Figure 9 are shown four triangular shaped hoods or mufflers 90, which are 'disposed with their apex portions inwardly in order to form a figure substantially rectangnlar in plan, and all of these hoods are disposed upon a common circular plate 91.

In Figure 10 is shown a still further modified form of the invention, in which four rectangular shaped hoods or mufflers 95 are disposed upon a common refractory plate 96. These hoods or mufflers 95 are constructed similar to the muffler G shown in Figures 1 to 3 inclusive, and the same are arranged in pairs upon the plate 96. The forms shown in Figures 7 to 10 are only several of the ways in which the mufflers can be constructed and arranged upon the plate.

Changes in details may be made without departing from the spirit or scope of this invention but,

I claim: I

1. The combination with a coal stove including a fire box and an having a lower wall, of a gas burner burning attachby the brackets for engaging ash pit said plate, the hoods having a plurality of minute perforations therein, a stand arranged in the ash pit engaging the lower wall thereof, and a gas feed tube extended into i the ash pit and supported by the stand, upstanding burner tubes carried by the gas feed tube and extending through the plates and into said hood, valves disposed within the burner tubes, means for controlling said valves, and means for permitting the adjustment of the refractory plate in relation to the ash pit and fire box.

2. The combination with a coal burning stove including a fire box and an ash pit, of a gas burner attachment therefor including a bed plate of refractory material arranged to snugly engage the walls of the fire box, a supporting stand disposed within the ash pit for supporting the plate including a pair of spaced brackets, adjustable arms carried the plate, adjustable legs carried by the brackets for engaging the bottom of the ash pit, hoods of refractory material disposed upon the bed plate, a burner pipe carried by the bracket, upstanding feed tubes carried by the pipe and disposed through the plate, burner caps carried by the. tubes and disposed within the hoods, valvesfor controlling the flow of gas through said tubes, and a pilot burner connected with the gas feed pipe and disposed between the hoods.

3. A gas burner comprising a plate, a hood arranged upon the plate and having one end open, a gas burner tube arranged to project through the plate and into said hood, U-shaped brackets arranged beneath the plate, depending legs on each of said brackets, outwardly extending feet on said legs, adjusting screws engaged with said feet for raising and lowerin the brackets, spaced 7 them in. an adjusted position.

JOSEPH W. SHARP. 

